You might want to state how long you have being using your spam filter, the typical amount of emails you get , the main types of filtering techniques used (bayesian, blacklists, reg exp etc.)

I'm looking for raw classification rates,
That is

number of successful classifications / total number of email.

So if you have 100 emails classified as 10 good and 90 spam, and 8 are classified wrongly (say 5 classified as spam are actually good, and 3 classified as good are actually spam) , your accuracy rate is (100-5-3)/100* 100% = 92%

Edited by Paranoid, 06 July 2004 - 10:51 AM.

Please note that the software I recommend above is entirely based on only my own experience and testing. In no way should my comments,opinions and endorsements be construed as an endorsement by the forum, nor do they reflect the advise or recommendations by the experts or helpers at spywareinfo.